Goldstone Teleservices Limited manufactures 25 KV Stay Arm Insulators for Normal Zone. Goldstone Teleservices Limited is an ISO 9001:2000 certified company. The Company also manufactures and supplies heat shrinkable telecom cable closures and other telecom accessories. The 25 KV Stay Arm Insulators for Normal Zone have dry lighting impulse and wet power frequency to withstand voltage. The 25 KV Stay Arm Insulators for Normal Zone have minimum failing tensile load and bending moment. These Stay Arm Insulators have specific creep age distance of 16mm/KV for standard zone. These Stay Arm Insulators are inter-changeable with existing ceramic insulators.